In 2011, Morasca and her then-boyfriend, fellow Survivor winner Ethan Zohn, participated in the 19th season of The Amazing Race.[2] They were one of the two teams eliminated in a double-elimination, finished 10th for the season.

Morasca's Survivor career began on Survivor: The Amazon, in which she was originally part of the all-female Jaburu tribe. During one immunity challenge, Morasca and fellow contestant Heidi Strobel stripped off their clothes for peanut butter and chocolate.[5] After making the merge, Morasca was relatively safe at the start as the majority of the tribe chose to vote off outcasts Roger Sexton and Dave Johnson. At the final 8, the new alliance of Morasca, Strobel, Alex Bell and Rob Cesternino targeted Deena Bennett, and she was voted out. At the final 7, Cesternino betrayed his alliance and blindsided Bell. At the Final 6, Morasca and Strobel scrambled to stay in the game, trying to break up the now-alliance of Cesternino, Matthew Von Ertfelda and Butch Lockley. When Christy Smith would not commit to either side, Cesternino convinced Morasca and Strobel to help vote Smith was voted off. At the Final Five, Strobel was voted out, but Morasca won the next immunity, protecting her in the vote of the Final Four. Morasca, Cesternino and Von Ertfelda to voted out Lockley. Morasca again won the next immunity challenge and voted off Cesternino. Morasca beat Von Ertfelda in a 6–1 vote to become the Sole Survivor. Morasca was the youngest contestant to ever win Survivor[5] until Jud "Fabio" Birza won Survivor: Nicaragua, though Morasca remains the youngest female contestant to win Survivor.[6]

In 2004, Morasca was invited back for Survivor: All-Stars.[5] As part of the Mogo Mogo tribe, Morasca and her tribe won immunity in the first two episodes. However, in episode three, Morasca decided to quit the game, regretting leaving her dying mother, who had been in a battle with cancer for 12 years.[1][5] Her mother died eight days after Jenna returned home.[1]

In 2011, Morasca and her then-boyfriend, fellow Survivor winner Ethan Zohn, participated in the 19th season of The Amazing Race. They checked-in at fourth place in the opening leg. In the first ever double elimination leg Morasca and Zohn arrived at the pit stop in 9th place, which would have just spared them from elimination, however, they were asked to return to the orphanage they visited in that leg to deliver all of their money which resulted in them been dropped to 10th place and their elimination.[episode needed]

Morasca made her professional wrestling debut on the March 12, 2009 episode of Total Nonstop Action Wrestling's TNA Impact! program, in a backstage interview with Mick Foley. She then appeared in backstage segments with Kevin Nash and his alliance The Main Event Mafia. It was later revealed by Kurt Angle that Morasca was the financial backer to the Mafia, and the money she provided was used to lure Samoa Joe to the stable. Morasca was regularly seen bickering with fellow Mafia valet Sharmell, leading to a catfight backstage on the May 28 edition of Impact!. On the July 9 edition of Impact it was revealed that Morasca had hired Awesome Kong to train her for her upcoming match against Sharmell at Victory Road where she defeated Sharmell.[13]

Morasca began dating fellow Survivor champion Ethan Zohn after her victory on Survivor: The Amazon in 2003. They lived in Manhattan, though not together.[14] In February 2013, Morasca and Zohn confirmed that they had amicably ended their relationship after ten years together.[15]